Measuring device

Details Measuring device Measuring device

2008-01-15

2008-01-15

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

By monitoring of webs or thread

For flaws or imperfections

C356S630000

Reexamination Certificate

active

07319521

ABSTRACT:
A device for measuring the thickness of a sheet or web product including at least one moveable measuring sensor which can be pressed against the product while forming an air pad between measuring sensor and product. At least one measuring sensor is respectively provided on both sides of the sheet or web product. The thickness of the respective air pad can be measured, the total gap thickness including the thickness of the two air pads and the product thickness can be measured. Elements are provided for calculating the product thickness by subtracting the thickness of the air pad on the two product sides from the measured total gap thickness.

REFERENCES:
patent: 4276480 (1981-06-01), Watson
patent: 4773760 (1988-09-01), Makkonen
patent: 5162661 (1992-11-01), Sato et al.
patent: 5661671 (1997-08-01), Ooenoki et al.
patent: 5714763 (1998-02-01), Chase et al.
patent: 6281679 (2001-08-01), King et al.
patent: 6588118 (2003-07-01), Hellstrom
patent: 6743338 (2004-06-01), Graeffe et al.
patent: 19913928 (2000-09-01), None

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